Incubator



Dec. 6, 1932.

O. V. ROOKSTOOL INCUBATOR Filed Jan. 18, 1932 4 Sheets-Sheet l Invenlor o. v. ROOKSTOOL INCUBATOR Filed Jan. 18, 1932 4 Sheets-Sheet 2 f 0. VZOo/rdfoo/ 4 p waw zom 6, 1 932. 0. v. ROOKSTOOL- INCUBATOR Fil'ed Jan. 18, 1932' 4 Sheets-Sheet 5 goo/f6 7 00/ 7 fuNlTEDSTATEs PATENT omen INCUBATOR V 'ipr lqat bn iueeia i 18, 1932. 1 Serial No. 587, 9;

This invention relatestoan improved in- Figure 6 is a fragmentary plan view of a o bat d g ed forhatchlng eggs and bepart of the topof the cabinet.

lieved to be a novel contribution to the art The cabinet is denoted generally by the nthat it is characterizedby the incorporanumeral 7 and is here shown as of approxix tion therein of novel electrical features desmate rectangular configuration, although the tined to operate inan eflicientlj co-ordinated shape and proportions are immaterial. As manner to better fulfill the requirements of seen for example in Figure 4, the cabinet com- I astructureofthis class; '1 v prisesa casing constructed of inner and outp My primary aimyis to generally improve er walls 8 and 9 with an insulating filler 10 upon priorartand commerciallymarketed htherebetween to provide the requisite heat incubators by'fproviding a novel structural maintenance properties. As seen in Figure .organizationo partsespecially selected. and 1, the numeral 11 designates a suitably insu- I arranged to promote simplicity and efficiency. latecl door suspended from appro riate On f ature of the inventjofi i predicat d hinges 12 provided with suitable latch means vupon the unificationand}co-operationof an 1 n Wi a Win ow 14- p hautomatically controlled fan-type electric h n ow is located to Permit qu p j h t r o g tinginc ju ti n: ith n toinspection to be made without opening the ati th t ti lly bntmll d i i udoor. The numeral 15 denotes an elevated 1; l tj ofa wh b to' i f infi ifo t floor supported on appropriate blocks 16 and perature throughout-the internal area of the Composed of a plurality of removable Plate bi et d t th b p t b tte di. sections 17 formed with a multiplicity of apa h "p t n' i h s the am im gad ertures 18 for'air circulation purposes. This p i floor is located near the main bottom and h Another feature o t ntidn i f d d vides the interior of the cabinet into upper fiafif d'up i v ati f a t ygr ngementbf parts and lower compartments 19 and 20 respecdesigned to expeditiouslycool the eggswhen t y- .reqmred by a i pr e f i t d Mounted 1n the lower compartment as seen ,tion of atinospheric airto displacethe heated 1n Flgure 2 1S a 511113211016 g heat 7 a v j h p h p l h I controlled'thermostat 21'wh1ch 1s automati- A'fu th f t if b t f ti nj f -d; cal 1y operable on a predeterminedlow-temso Qed'on the construction of theinsulatedrlamip il 1 1 9; 1n W P of t nated wall of "the. cabinet, the window cablnett- Thls tllfarmostat l provlckd W snipped o h p fi l i current supply wires 22 arranged to control 3% internalpartsdesigned for efiicijency in an clrculatlngfan23' f 35 Heating/and n n 1 r v The stand 23 as seen in Figure dislocated I ,oth f ll'yp ti ntf gf g d d. in the neck P01121011 of a substant allyfunvantages will become more readily apparent D p houslng 24, S316- housmg belng from the following description and drawings. formed 9 the lower lateral branch 2 Of an s i I 't dmwihgsz 3 j p upstandlng tubular condu t or plpe The w Figure 1 i'sairont elevationobserving the 1 19 branch 2 7 0 f h pipe lies wlthm the 1 structure from the xt rior th f, I I v clnity of the celhng of the cabinet and the j Fig 2 ig'a t 1 ti 1 ecti l ie open end thereof is designated as the lntake with, parts in elevation)" q It will be observed in F1gure5 that the a jFigure 3 i ohorj on t l ction th l' discharge end ot the hous ng is of such proflag 3. 3LOfFi 1- 2,1 w portions'that approximately one-half comf fF-igure' i isa tr'ansverse verticalsection municates with the lower chamber or comvtakenjafproximately on the plane of the line part-ment 20 while the upper halfdischarges I o Figure2. Q into the lower POItIOII Of the upper com- Figureb is an" exaggerated detailof the partment 19.-

1 $2 9 electric heater and fanasseinblylj h This housing serves to accommodate the I p p to receive a plug 33 with which the electric electric fan equipped heater generally de-. noted by the numeral 29. This heater is of any appropriate marketed type. It is generally referred to in the trade as a fan type heater." The current supply, wlres indicated I by the numerals. 30 are connectedwith' a heat actuated single wafer thermostat 31 supported in the'fupper central part 'of the cabinet as seen in Figure 2. Incidently thenumeral 32 designates an electrivolgceptacle designed ,1 house cord 34L is connected. Thisis conven-- 'iently located to permit the heater circuit to he fbe cut out when coolingthe eggs in-the cabinet; q

' *rhe'*aamjaisies'fidesignatereaoabiaal V 1 pered; vent plugs fittedjinto{correspondingly shaped vent holes the top o-f the. cab net. I ,The numerals 36rn'erely des gnate casters for inakingthe structure portable p In opera't-ion when the'plug '33 1S fitted 1n the socket or'-receptacle 32 the electric heater 29 is brought into play and the heated air.

wavesa re circulated from the housing 24 into the chambers '19 and 2,0 of 'the cabinet. Obv1-- ously the heat rises rapidly and th-eheated air, accumulates in the upperportion of the uniform heat so necessaryin an egg hatching -1- incubator." I

' had to the, trays (not shown) .forturning the ;djow.14 in the door permits inspection to be cabinet. zThis leaves-the air in the compartment 20 somewhat cooler and when the air cternalconditions-of the incubator. r

within the vicinity of the contraction thermostat2l becomes sufficiently cool, the-thermostat 21 comes into play to automatically drawing the heated airffrom'the top'fof' the When the requisite uniform, heated tern,- perature is established, the"fan 23' is auto-- matically :ut out. In addition, Wh nthe'del sired: temperature is established throughout V the cabinet, and should: it become "excessive, l the expansion thermostat 31 comes into play v to automatically cut out; the heater. Consederand progression to maintain the requisite Obviously the door 11 permit-saccess to be eggswhenever desired. Moreover, the .win-

made at frequent intervals. to observeithe' in- 'Whenit is desired to cool the eggs,"the'electric plug as is detac e h s h ow mostat1-2Lthrowing thefan 23into-operation' as a ventilator... .6 V

at. this time' and permitting the; fan. to serve The a 23 andltstherniestat aye em were 915 t e at its :lower'end withvsaid housing and havi rang'ed Within-the vicinity of the bottom of ing ,said heater and in Communication with ;vicinity of the ceiling of the cabinet an elece I tri-c 'ai'r'circulating.fanmounted in said housq tly vthe thermostats p e 1n pr p o ring, an'qex an'sion thermostat mounted in the uu'pper portion oif'the cabinet and electrically connected with the heater for automatically bodied. in an individual circuit to permit this end to be satisfactorily accomplished.

It is thought from the foregoing description that the advantages and'novel features of the invention will be readily apparent.

v It' is to be understood that changes may be made in the'constructionand in the combination and arrangement of the'fsev'eral parts provided thatsuch changes fall within -pr ndedie I claim: I v-TlLiAIl incubator comprising a cabinet, supporting membersarranged. 'in the lower portionofthe cabinet an elevated floor comprising a gplurality of apertured' platesrnou'ntedon said fs'upporting'member and arranged within the vicinity of the. bottom of the .cabinetfsaid floorld'ividing'the cabinet into; upper and: lower compartments, and

an electric fan typejheater supported" in the lower partof the cabinet, a housing enclosing said, heater jand in communication with the upper and lower compartments,a tub ular'air conducting and distributing pipe connected.

ing' itsupper 'end' located 'Wltlllll the vicinity of the ceilingof the cabinet, an electric' air circulating fanmounted in said housing.

. 211m incubator comprising a cabinet, supportingmembers'arranged in the lower por ti'on of the cabinet, an elevated floor comprising a plurality" pfaperturedxplates mounted on' said supporting me'mber' and" ar the" cabinet, said floor dividing the" cabinet into upper and lower compartments,- and an electric jf a'n type heater supported?" in the lower part of the cabinet, a housingenclostheupper andlowercompartments,.a tubular .air' "conducting and distributing pipe connected at its lower endfwith saidhousing and having its: "upper Tend located within ffthe controlling theheateryand second con-V.

door. formed in me wall of fthe cabinet and provided witha window,"'anelevated fioor upportedin the low M ortionofjthecabi'net and composed of remov'able "section's, said; floor defining upperand lower compartments, a fvertic llyiarra nged i' i'p siipportedgin the cabinet anahavin Qupp'er laterally dire ctedair intake branch'loc'ated withinthe vicinity ofIthe'cQeil'ingYOf; the cabinet,*having;

its lower end directed la'terally and i extendthe v supportedin thelower portion of the cabinet and composed of removable sections, said ing into thelower comgilrtment and terminating in an enlarged nnelshaped houssaid housing; and an! air circulating fan mounted in'the housing inward of theheater.

4. An incubator comprisingfa cabinet ini eluding insulated walls, having yentholes in it's top, removable vent plugs in said holes, a door formedin one wall of the cabinet and pr'ovidedjwith a window; an elevated floor floor defining upper and lowercompartments,

a vertically arranged pipe slipp f in the I cabinet and having an upper laterally J directed air intake branch located withinthe its lower end directed laterally and extendvicinity of the ceiling of the cabinetyhaving ing into the lower compartment and terminat ing in an enlarged, funnel-shaped housing,

a fan-type electric heater confined in said housing, an air circulating fan mounted t the housing inward "of the heater, togetherwith an: automatically operablethrm'ostat in the lower compartment electrically connected with the yfan, and aysecond automatically xoperable 'temperaturefcontrolled thermostat mounted in the upper part of the cabinet and electrically connected with the heater. t

In testimony whereof I afiix my signature. y y OM ERKBOOKSTOOL;

ing, a fan-type electric heater confined in 

